Since Matlab is expensive, GNU Octave takes too long to start and the Windows(tm) Calculator ... well ... sucks ... I decided to write my own one, which now needs some testing.
http://mk-scape.de/down/pgc.zipIt still doesn't support anything I want but this is going to change in the future. Right now you can do all basic calculations and also use vectors/matrices by placing theirs comonents in parenthesis:
(1,2,3) vector or (1,2;3,4) 2x2 matrix
You can assign values to variables by using = or forward arrow
There are some basic functions implemented. Descriptions are available by typing
Trigonometric functions are in radians, I'm going to add a DEG/RAD switch later on.
You can copy the ans(wer) value to the clipboar by pressing Ctrl+P.
Vector multiplication: There are two different operators which can be used.
(1,2,3) * (3,4,5)' does a dot product. Please note that the second vector is transposed using an apostrophe.
(1,2,3) .* (3,4,5) does a component wise multiplication
.
You can create a vector of increasing values by using the range operator:
x = 0:255 Create vector of length 256 filled with all numbers from 0 to 255
x = 0:0.5:10 Create a vector from 0 to 10 with steps of 0.5, i.e. (0, 0.5, 1, 1.5, ...)
You can also
plot functions but the plot window isn't really done yet and only displays graphs in the range -4 to 4 in x and y. Example:
x = -4:0.05:4
y = plot(sinh(x);cosh(x);tanh(x))
Operators:
+ add
- sub
* mul
/ div
! factorial
= assign to left
-> assign to right
^ power
, column delimiter
; row delimiter
x:y range
x:y:z range with steps unequal 1
Feel free to report any bugs here.
